Prostration During Recital of Qur'an

The Prophet recited Suratan-Najm (103) at Mecca and prostrated while reciting it and
those who were with him did the same except an old man who took a handful of small stones
or earth and lifted it to his forehead and said, "This is sufficient for me."
Later on, I saw him killed as a non-believer.

The Prophet recited Surat-an-Najm (53) and prostrated while reciting it and all the
people prostrated and a man amongst the people took a handful of stones or earth and
raised it to his face and said, "This is sufficient for me. Later on I saw him killed
as a Nobel ever. "

I saw Abu Huraira reciting Idha-Sama' un-Shaqqat and he prostrated during its
recitation. I asked Abu Huraira, "Didn't I see you prostrating?" Abu Huraira
said, "Had I not seen the Prophet prostrating, I would not have prostrated."

When the Prophet recited Surat As-Sajda and we were with him, he would prostrate and we
also would prostrate with him and some of us (because of the heavy rush) would not find a
place (for our foreheads) to prostrate on.

'Umar bin Al-Khattab recited Surat-an-Nahl on a Friday on the pulpit and when he
reached the verse of Sajda he got down from the pulpit and prostrated and the people also
prostrated. The next Friday 'Umar bin Al-Khattab recited the same Sura and when he reached
the verse of Sajda he said, "O people! When we recite the verses of Sajda (during the
sermon) whoever prostrates does the right thing, yet it is no sin for the one who does not
prostrate." And 'Umar did not prostrate (that day). Added Ibn 'Umar "Allah has
not made the prostration of recitation compulsory but if we wish we can do it."

I offered the 'Isha' prayer behind Abu Huraira and he recited Idhas-Sama' Un-Shaqqat,
and prostrated. I said, "What is this?" Abu Huraira said, "I prostrated
behind Abu-l-Qasim and I will do the same till I meet him."